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kogti [31]
3 years ago
15

Which gas forms 21% of Earth's atmosphere?

Geography
1 answer:
dolphi86 [110]3 years ago
7 0
I think the answer is d
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How did ptolemy account for retrograde motion in his model of the solar system
IgorC [24]

<u>Answer:</u>

Ptolemy accounted for 'retrograde motion' in his model of the solar system by introducing smaller circles named 'epicycles'.

<u>Explanation:</u>

  • According to Ptolemy, the Sun and the other planets in the Solar system orbited around the Earth.
  • The Greeks were convinced that Ptolemy's earlier model did not provide for backward or the retrograde motion.
  • Ptolemy thought over it for a while and theorized the possibility of 'epicycles'.
  • According to Ptolemy, the planets that orbited Earth also orbited another smaller point.
  • The smaller orbits followed by the planets while in motion around the Earth in a larger orbit were introduced by Ptolemy as 'epicycles'.
  • Until Kepler proposed his models of the functioning of the Solar system, Ptolemy's models were considered the most relevant.
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3 years ago
Why does Germany feel undefeated?
motikmotik

Answer:

Even though they lost World War 1 and World War 2, they still think that they can still win all the other counties over, bombs and technology are always getting better everyday. (NOT TO BE RACIST OR ANYTHING)

Explanation:

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Ipatiy [6.2K]

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It should be the Panama Plate

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The Panama Plate is a microplate. A small tectonic plate sandwiched between the Cocos Plate and Nazca Plate

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Which cloud type consists of globular cloud masses with a cauliflower structure?
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Cumulus cloud has the cauliflower structure
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HELP ASAP
KIM [24]

I am pretty sure the awnser is B the collapse of communism

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